TS
Timothy Sullivan — 1930 US Census Record
Model Tree available1930 United States Federal Census · Suffolk, Massachusetts
Our Model Tree links this Timothy Sullivan across the 1900, 1910, 1920 and 1930 US Censuses in Suffolk, Massachusetts (XGBoost, ~Confirmed), with identified parents John & John — first a son (b.~1899), then head of a 5-person household.
Age 31
b. ~1899
Male
Son
Born: Massachusetts
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Suffolk, Massachusetts |
| Surname | Sullivan |
| Given Name | Timothy J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| Age at First Marriage | 30 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Additional Details | |
| Occupation | Clerk |
| Industry | United Drug |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Clerk |
| Township / Ward | Boston City |
| Est. Birth Year | ~1899 |
Household Members
Census records only state relationship to the household head.
Pairwise kinship is derived (~90–95% accurate), not recorded.
Step/blended families and boarders can break it.
5 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Timothy | Age | Birth yr |
|---|---|---|---|---|
| Esther Sullivan | Daughter | — | 28 | ~1902 |
| John Sullivan | Head | — | 69 | ~1861 |
| John Sullivan | Son | — | 37 | ~1893 |
| Timothy Sullivan | Son | — | 31 | ~1899 |
| Mary Sullivan | Spouse | — | 67 | ~1863 |
Census Appearances
1900
Suffolk, Massachusetts
Son, age 1
Suffolk, Massachusetts · implied b. ~1899 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sullivan |
| Given Name | Timothy |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Birth Month | May |
| Birth Year | 1899 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1910
Suffolk, Massachusetts
Son, age 10
Suffolk, Massachusetts · implied b. ~1900 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sullivan |
| Given Name | Timothy |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1920
Suffolk, Massachusetts
Son, age 22
Suffolk, Massachusetts · implied b. ~1898 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sullivan |
| Given Name | Timothy |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Chauffeur |
| Industry | Trucking |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Suffolk, Massachusetts
Son, age 31
Suffolk, Massachusetts · implied b. ~1899 — 5 household members
| Surname | Sullivan |
| Given Name | Timothy J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| Age at First Marriage | 30 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Clerk |
| Industry | United Drug |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
Model Tree
An inferred pedigree reconstructed from census links — up to 4 generations within the 1900–1950 window. Closer generations are built from household co-residence; deeper ones are bridged by following a relative to their own childhood census. Confidence compounds and weakens with each generation.
Our Model Tree links Timothy Sullivan across 4 US Census years (1900, 1910, 1920 and 1930) in Suffolk, Massachusetts, using XGBoost record linkage. Identified parents: father John Sullivan (~0.92 confidence) and father John Sullivan (~0.92 confidence) and mother Mary Sullivan (~0.92 confidence) and mother Mary Rooney (~0.92 confidence) and father Timothy Sullivan (~0.92 confidence) and mother Mary Sullivan (~0.92 confidence) and mother Mary Sullivan (~0.92 confidence). The pedigree spans 1 generation with 7 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Sullivan
b. ~1861
Source father
● Household
· direct · ~0.92
Father
John Sullivan
b. ~1861
Source father
● Household
· direct · ~0.92
Mother
Mary Sullivan
b. ~1863
Source mother
● Household
· direct · ~0.92
Mother
Mary Rooney
b. ~1866
Source mother
● Household
· direct · ~0.92
Father
Timothy Sullivan
b. ~1870
Source father
● Household
· direct · ~0.92
Mother
Mary Sullivan
b. ~1872
Source mother
● Household
· direct · ~0.92
Mother
Mary Sullivan
b. ~1875
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Timothy Sullivan
Son · 1930 · age 31 · b. ~1899 · Massachusetts
★ You are viewing this record
Sibling
Esther Sullivan
Sibling · 1930 · age 28
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Sullivan
Sibling · 1930 · age 37
Source co-child of head (derived)
● Co-child · derived · ~0.88
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — Suffolk, Massachusetts
Open full size
1930 US Federal Census — Suffolk, Massachusetts
Page Contents
49 people indexed on this census page (ia:1930:massachusettscensus00reel951:0793)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | John F. Grogan | 44 | Head | Freight Clerk | Ireland |
| 2 | Mary B. Grogan | 31 | Wife | — | Rhode Island |
| 3 | John F. Jr. Grogan | 13 | Son | — | Massachusetts |
| 4 | William H. Grogan | 11 | Son | — | Massachusetts |
| 5 | Ruth G. Grogan | 9 | Daughter | — | Massachusetts |
| 6 | John J. Haney | 27 | Head | Laborer | Ireland |
| 7 | Catherine Haney | 27 | Wife | — | Ireland |
| 8 | John Haney | 2 | Son | — | Massachusetts |
| 9 | John M. Sullivan | 69 | Head | Laborer | Ireland |
| 10 | Mary E. Sullivan | 67 | Wife | — | Ireland |
| 11 | John F. Sullivan | 37 | Son | Clerk | Massachusetts |
| 12 | Timothy J. Sullivan THIS PERSON | 31 | Son | Clerk | Massachusetts |
| 13 | Esther M. Sullivan | 28 | Daughter | — | Massachusetts |
| 14 | George H. Fairmont | 33 | Head | Chauffeur | Massachusetts |
| 15 | Mary G. Fairmont | 32 | Wife | — | Massachusetts |
| 16 | Francis Fairmont | 4 | Son | — | Massachusetts |
| 17 | Teresa Fairmont | 2 | Daughter | — | Massachusetts |
| 18 | William J. Tapp | 34 | Head | Fireman | Canada |
| 19 | Mabel G. Tapp | 34 | Wife | — | Massachusetts |
| 20 | Brenda Williams | 53 | Mother | — | Newfoundland |
| 21 | Patrick J. Duggan | 55 | Head | Clerk | Ireland |
| 22 | Julia Duggan | 56 | Wife | — | Ireland |
| 23 | Michael J. Duggan | 28 | Son | Clerk | Massachusetts |
| 24 | Mary E. Duggan | 26 | Daughter | Bookkeeper | Massachusetts |
| 25 | Marie C. Duggan | 24 | Daughter | — | Massachusetts |
| 26 | Charles J. Duggan | 22 | Son | Stenographer | Massachusetts |
| 27 | Teresa Duggan | 20 | Daughter | — | Massachusetts |
| 28 | Frederick J. Duggan | 16 | Son | — | Massachusetts |
| 29 | Eugene F. O'Neil | 41 | Head | Conductor | Massachusetts |
| 30 | Mary J. O'Neil | 42 | Wife | — | Massachusetts |
| 31 | Rita M. O'Neil | 14 | Daughter | — | Massachusetts |
| 32 | Ruth M. O'Neil | 12 | Daughter | — | Massachusetts |
| 33 | Robert E. O'Neil | 10 | Son | — | Massachusetts |
| 34 | Eugene F. Jr. O'Neil | 8 | Son | — | Massachusetts |
| 35 | Paul M. O'Neil | 5 | Son | — | Massachusetts |
| 36 | Marguerite L. Molineux | 32 | Lodger | Dressmaker | Massachusetts |
| 38 | John H. Jaensch | 44 | Head | Painter | Germany |
| 39 | Harriet M. Jaensch | 35 | Wife | — | Massachusetts |
| 40 | Ralph H. Pratt | 41 | Head | Conductor | Massachusetts |
| 41 | Grace G. Pratt | 39 | Wife | — | Massachusetts |
| 42 | Bertha Boyce | 82 | Mother | — | New Brunswick |
| 43 | Daniel A. O'Sullivan | 56 | Head | Real Estate | Ireland |
| 44 | Paul Vincent O'Sullivan | 25 | Son | — | Massachusetts |
| 45 | Mary F. O'Sullivan | 59 | Wife | — | Massachusetts |
| 46 | Edward Thomas | 30 | Head | Checker | Ireland |
| 47 | Marie B. Thomas | 1 | Daughter | — | Massachusetts |
| 48 | Catherine A. Thomas | 0 | Son | — | Massachusetts |
| 49 | Catherine Campbell | 50 | Mother | — | Ireland |
| 50 | Joseph Campbell | 21 | Brother | Salesman | Massachusetts |
Pedigree Summary
Timothy + 2 siblings
Gen 1 · 7 parents
~0.92
Max depth 4 (1900–1950 window)
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 United States Federal Census (NARA). Our Model Tree links this person across census decades using XGBoost-based record linkage, with per-link confidence scores. Household corroboration strengthens the signal when co-residents appear on the same census pages in multiple years.
Source: National Archives and Records Administration (NARA)